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NIC Disables on reboot SBS 2008

SBS 2008 with Hyper-V on reboot disables physical NIC that is bound to the virtual NIC. All other NICs stay enabled and the virtual NIC stays enabled.
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Ryan Smith
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Is this SBS running on a hyper-V host or Hyper-v running on an SBS host? If If Hyper-V is running on SBS it is not supported and you will have constant issues relating to networking.

If it is a non-SBS host is the NIC disabled or is just the gateway lost? There is a known issue with the gateway with which we can help you.
This is a misconfigured Hyper-V installation. When properly configured, there *is* no physical NIC device in either the guest or parent OS. The hypervisor takes control of the physical NIC, creates a "virtual switch" and both the parent OS and the guest OSs get virtual NICs attached to the virtual switch. If you are seeing a physical NIC in your parent OS then yes, it is being disabled (rightfully) by Hyper-V as the hypervisor is responsible for this, not the parent OS. What should *not* be disabled, and what may potentially be missing, is the virtual NIC in the parent OS. You may have to delete all virtual networks and recreate them for this to work properly.


-Cliff
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Thanks for the clarification. Might explanation of the problem might have been a bit off. On reboot the NIC that the hypervisor takes control of and creates the virtual switch with is getting disabled on reboot. The virtual NIC on both the parent OS and guest OS stay enabled.
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Cliff Galiher
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Thanks, I will give that a try and get back to you.
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